...of the circumference is called a semicir cumference. The arc CKD, Fig. 87, is a semicir cumference. A chord is a straight line joining the extremities of an arc. See line EH, Fig. 87. A tangent is a straight line which touches the circumference of a circle but...

...of the circumference is called a semicir cumference. The arc CKD, Fig. 87, is a semicir cumference. A chord is a straight line joining the extremities of an arc. See line EH, Fig. 87. A tangent is a straight line which touches the circumference of a circle but...

...of the circumference is called an arc (§ 2). One quarter of a circumference is called a quadrant. A chord is a straight line joining the extremities of an arc. A diameter is a chord that passes through the center. The angle between any two radii is called a central...

...of the circumference is called an arc (§ 2). One quarter of a circumference is called a quadrant. A chord is a straight line joining the extremities of an arc. A diameter is a chord that passes through the center. The angle between any two radii is called a central...

...of the circumference, as ABE and CFD, Fig. 32. Fig. St.— Arcs and Chords. Fig. SS.— Sectors. 60. A Chord is a straight line joining the extremities of an arc, as AE and CD, Fig. 32. 61. A Sector of a circle is the space included between two radii and the arc which...

...point of contact Thus, TP is a tangent 21. An ARC of a circle is any part of the circumference. as A F. A CHORD is a straight line joining the extremities of an arc. 22. MENSURATION is the art of finding the surface, and also the solid contents of bodies. 23. The AREA...